Effects of ofloxacin on nitrogen removal and microbial community structure in constructed wetland

Tong, Xinnan; Wang, Xinze; He, Xiaojuan; Xu, Kai; Mao, Feijian

doi:10.1016/j.scitotenv.2018.11.358

Cited by 72 publications

(27 citation statements)

References 56 publications

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“…The abiotic reaction rate has been reported to link with the reactive surface area of iron. 38 The 23,51 However, no signicant difference among nitrate concentrations in C system during 0-5 d was observed in our study (ANOVA: P > 0.05). Therefore, we suppose the uctuation of nitrate was negligible.…”

Section: Nitrate Removal Performance Of the Systemcontrasting

confidence: 55%

Bacteria-supported iron scraps for the removal of nitrate from low carbon-to-nitrogen ratio wastewater

Liu

Huang

et al. 2019

RSC Adv.

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Section: Nitrate Removal Performance Of the Systemcontrasting

confidence: 55%

Bacteria-supported iron scraps for the removal of nitrate from low carbon-to-nitrogen ratio wastewater

Liu

Huang

et al. 2019

RSC Adv.

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“…On the other hand, the abundance of AOB‐ amo A mRNA was reported to increase in the presence of low‐concentration antibiotics (Wang et al, 2019; Xu et al, 2019), probably because trace antibiotics can activate the quorum sensing promoter, acting as alternative self‐inducing factors (Liu, Yang, et al, 2018). There have been several studies reporting increases (Jung et al, 2011; Zhalnina et al, 2014) or decreases in AOA abundance (Tong, Wang, He, Xu, & Mao, 2019; Zhang et al, 2015), but the mechanism of the effects of antibiotics on AOA is still unclear.…”

Section: Discussionmentioning

confidence: 99%

Response of ammonia‐oxidizing archaea and bacteria to streptomycin sulfate and penicillin in coastal wetlands along the Bohai Rim

Tang

Wang

2021

Land Degrad Dev

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Antibiotics are pollutants that are constantly discharged into ocean and coastal wetlands and affect the growth and activity of microorganisms. Ammonia-oxidizing archaea (AOA) and bacteria (AOB), which are very important in the global nitrogen cycle, are affected by antibiotics in the environment as well. Antibiotics have different influences on AOA and AOB microbial communities due to their different biochemical compositions and metabolic mechanisms, which change the ammoniaoxidizing process in different environments. In this study, 62 samples from four typical coastal wetland types along the Bohai Rim were collected and treated with streptomycin sulfate and penicillin in the laboratory. The total ammonia oxidation rate decreased by 61.2-84.0% with streptomycin sulfate and decreased by 50.0-74.5% with penicillin. The significant change in abundance and community structure indicated that AOB were more inhibited than AOA by streptomycin sulfate and penicillin. Nevertheless, ecological network analysis verified that the internal association in the AOA community was more fragile than that in the AOB community. Moreover, the relationship between AOA and other nitrogen-transforming functional archaea weakened in the presence of antibiotics, while AOB established relationships with more nitrogen-transforming functional bacteria in the presence of antibiotics. Streptomycin sulfate had a stronger effect than penicillin due to the different inhibiting mechanisms of these antibiotics and the promotion of interspecific cooperation induced by penicillin in AOA.

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“…In particular, effective plant-bacteria relationships can successfully remove a large number of contaminants in wastewater, including a variety of biotoxic substances (e.g., heavy metals and antibiotics). [85][86][87][88][89][90].…”

Section: Vegetation Has Multiple Effects On Treatment Efficiency Of Cwsmentioning

confidence: 99%

Can Constructed Wetlands be Wildlife Refuges? A Review of Their Potential Biodiversity Conservation Value

et al. 2020

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The degradation of wetland ecosystems is currently recognized as one of the main threats to global biodiversity. As a means of compensation, constructed wetlands (CWs), which are built to treat agricultural runoff and municipal wastewater, have become important for maintaining biodiversity. Here, we review studies on the relationships between CWs and their associated biodiversity published over the past three decades. In doing so, we provide an overview of how wildlife utilizes CWs, and the effects of biodiversity on pollutant transformation and removal. Beyond their primary aim (to purify various kinds of wastewater), CWs provide sub-optimal habitat for many species and, in turn, their purification function can be strongly influenced by the biodiversity that they support. However, there are some difficulties when using CWs to conserve biodiversity because some key characteristics of these engineered ecosystems vary from natural wetlands, including some fundamental ecological processes. Without proper management intervention, these features of CWs can promote biological invasion, as well as form an ‘ecological trap’ for native species. Management options, such as basin-wide integrative management and building in more natural wetland components, can partially offset these adverse impacts. Overall, the awareness of managers and the public regarding the potential value of CWs in biodiversity conservation remains superficial. More in-depth research, especially on how to balance different stakeholder values between wastewater managers and conservationists, is now required.

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Effects of ofloxacin on nitrogen removal and microbial community structure in constructed wetland

Cited by 72 publications

References 56 publications

Bacteria-supported iron scraps for the removal of nitrate from low carbon-to-nitrogen ratio wastewater

Bacteria-supported iron scraps for the removal of nitrate from low carbon-to-nitrogen ratio wastewater

Response of ammonia‐oxidizing archaea and bacteria to streptomycin sulfate and penicillin in coastal wetlands along the Bohai Rim

Can Constructed Wetlands be Wildlife Refuges? A Review of Their Potential Biodiversity Conservation Value

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